# Click "GOTO GS" to the left of the finderchart. You will see the XY slide coordinates updating and the status "Moving = 1".
# In the upper-left "Exposure Control" section, enter an exposure time in milliseconds (e.g. 2000) and click "Start Continuous".
# The Lodestar image will continuously update. Your guide star should be visible - click on it, then click "Search guide star" in the "Guiding Control" section, and watch for the message box below it to be popoulated populated with numbers and a time stamp, beginning with e.g. "xs zmax = -0.123456 ys = 1.234567 23:1912345". The zmax value is counts on the star, so make sure it isn't saturated (<65536), else reduce the exposure time.
# Click "Guide". If successful, the guide button will turn green, and the star will continuously be pulled back towards the red cross that appears on the image.
'''If guiding fails''' at any point during a track (e.g. due to cloud), the button will turn red. Try increasing the exposure time (change the value and click "Start Continuous") and click "Guide" if the star is sill near the red cross. If the star has drifted, you can either offset the telescope to bring it back to its original position and then click "Guide", or if it is not important to you to keep the target in the original position on the science image, you can repeat the guide star selection procedure to resume guiding in the new position.
To stop the autoguiderat the end of the night:
# Click "GUIDE" to stop guiding.
# Click "Stop Continuous" to stop exposing.